st: Convergence not achieved error with -clad-

[Radha Shah <payrs3@nottingham.ac.uk>]

Dear Statalist users,

I am having an issue using the user-written command -clad-. I am using Stata 13 for Windows.

Given that many of my dependent variable observations are 0, I initially used a -tobit- model. However my concerns about non-normality and heteroskedasticity meant I switched to -clad-.

However when I run the same regressions as I did with my tobit model, I now receive the error message "convergence not achieved". I have systematically removed each independent variable and have been unable to solve the problem. 

Any advice on how I can overcome this problem would be great! 

Many thanks,

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